---------------------------------------------------------- Pietenpol-List Digest Archive --- Total Messages Posted Thu 04/06/06: 5 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:26 AM - Re: Clif Dawson's handle wraps (panhandler1956) 2. 10:52 AM - Carb issues for the corvair (Kenneth M. Heide) 3. 11:32 AM - Re: Carb issues for the corvair (Hans Vander Voort) 4. 11:50 AM - Re: Carb issues for the corvair (harvey rule) 5. 03:59 PM - Re: Carb issues for the corvair (Kip and Beth Gardner) ________________________________ Message 1 _____________________________________ Time: 06:26:38 AM PST US Subject: Pietenpol-List: Re: Clif Dawson's handle wraps From: "panhandler1956" --> Pietenpol-List message posted by: "panhandler1956" Clif, I would be interested in that information. I like the your wraps too!! Great work!! -------- Brent O. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=26721#26721 ________________________________ Message 2 _____________________________________ Time: 10:52:06 AM PST US From: "Kenneth M. Heide" Subject: Pietenpol-List: Carb issues for the corvair Fellow Pieter's: I am interested to hear what carburetors are use on the corvair conversion. It appears the NA-S3B Stromberg has been mention but having difficulties finding a good one even on E-Bay. Are there other carbs being utilized more often than others? Just looking for answers before I start my search.... Ken H. Fargo, ND --------------------------------- ________________________________ Message 3 _____________________________________ Time: 11:32:37 AM PST US Subject: Re: Pietenpol-List: Carb issues for the corvair From: Hans Vander Voort --> Pietenpol-List message posted by: Hans Vander Voort Ken, This quote from William Wynne's site: -There are four different carburetors that dominate the field of flying Corvairs. These are divided among two applications: gravity feed fuel systems (most high wing airplanes and low wing airplanes with header tanks) and pressure fuel systems (mostly seen in low wing airplanes without header tanks). If you are using a gravity feed fuel system, you can use any of the four popular carburetors. These carbs are the Ellison EFS-3A, Marvel Schebler MA3-SPA, Stromberg NAS-3, and Monnett Aero-Carb. If you have a pressure fuel system, like a 601XL or a KR-2 without a header tank, then you should be using an EFS-3A or an MA3-SPA. The Corvair runs well on all of these carbs. Bill Clapp's KR-2S has nearly 300 hours on an Aero-Carb. Mark Langford's and Steve Makish's KRs both run on Ellison EFS-3As. Dave The Bear's Wagabond and the Skycoupe both fly on Strombergs. Our 601 and the Cleanex both have MA3s. Ellison Fluid Systems sells the EFS-3A. And the Monnett family is the only place to get an Aero-Carb. Either of these carbs fit on a single model of our CNC stainless intake manifold. Alternatively, the Stromberg and MA3 both fit on a slightly different manifold we make. All of the carburetors except the MA3 require a primer. We weld a single primer port in the up tube on the right hand side of the intake manifold. This is common practice on certified engines. The MA3-SPA's accelerator pump makes a primer unnecessary.- My comments: All of the above are either hard to find or expensive (or both). I choose to go with a Zenith Carburetor as used on the larger VW conversions. You can buy them at: http://www.greatplainsas.com/sccarb.html They call them 1821 carburetors after the VW engine conversion they represent. The Zenith designation is # 267 see at: http://www.zenithfuelsystems.com/updraft_267.htm It gives me about 2800 RPM static and about 3000 WOT flying Although I fly most of the time at about 70 Mph which is less than 1/4 throttle (2200 RPM) I did remove the choke, have a primer on the LH intake manifold a home made carb heat box. Hans "Kenneth M. Heide" Pietenpol Sent by: owner-pietenpol-l cc ist-server@matron ics.com Subject Pietenpol-List: Carb issues for the corvair 04/06/2006 12:49 PM Please respond to pietenpol-list@ma tronics.com Fellow Pieter's: I am interested to hear what carburetors are use on the corvair conversion. It appears the NA-S3B Stromberg has been mention but having difficulties finding a good one even on E-Bay. Are there other carbs being utilized more often than others? Just looking for answers before I start my search.... Ken H. Fargo, ND rates. ________________________________ Message 4 _____________________________________ Time: 11:50:23 AM PST US From: harvey rule Subject: Re: Pietenpol-List: Carb issues for the corvair --> Pietenpol-List message posted by: harvey rule I use the Zenith on my 1/2 vw and you can't get much simpler than that carb. Hans Vander Voort wrote: > > --> Pietenpol-List message posted by: Hans Vander Voort > > Ken, > > This quote from William Wynne's site: > > -There are four different carburetors that dominate the field of flying > Corvairs. These are divided among two applications: gravity feed fuel > systems (most high wing airplanes and low wing airplanes with header tanks) > and pressure fuel systems (mostly seen in low wing airplanes without header > tanks). If you are using a gravity feed fuel system, you can use any of the > four popular carburetors. These carbs are the Ellison EFS-3A, Marvel > Schebler MA3-SPA, Stromberg NAS-3, and Monnett Aero-Carb. If you have a > pressure fuel system, like a 601XL or a KR-2 without a header tank, then > you should be using an EFS-3A or an MA3-SPA. The Corvair runs well on all > of these carbs. Bill Clapp's KR-2S has nearly 300 hours on an Aero-Carb. > Mark Langford's and Steve Makish's KRs both run on Ellison EFS-3As. Dave > The Bear's Wagabond and the Skycoupe both fly on Strombergs. Our 601 and > the Cleanex both have MA3s. > Ellison Fluid Systems sells the EFS-3A. And the Monnett family is the only > place to get an Aero-Carb. Either of these carbs fit on a single model of > our CNC stainless intake manifold. Alternatively, the Stromberg and MA3 > both fit on a slightly different manifold we make. All of the carburetors > except the MA3 require a primer. We weld a single primer port in the up > tube on the right hand side of the intake manifold. This is common practice > on certified engines. The MA3-SPA's accelerator pump makes a primer > unnecessary.- > > My comments: > > All of the above are either hard to find or expensive (or both). > I choose to go with a Zenith Carburetor as used on the larger VW > conversions. > You can buy them at: http://www.greatplainsas.com/sccarb.html > They call them 1821 carburetors after the VW engine conversion they > represent. > > The Zenith designation is # 267 see at: > http://www.zenithfuelsystems.com/updraft_267.htm > > It gives me about 2800 RPM static and about 3000 WOT flying > Although I fly most of the time at about 70 Mph which is less than 1/4 > throttle (2200 RPM) > I did remove the choke, have a primer on the LH intake manifold a home > made carb heat box. > > Hans > > > "Kenneth M. > Heide" > .com> Pietenpol > Sent by: > owner-pietenpol-l cc > ist-server@matron > ics.com Subject > Pietenpol-List: Carb issues for the > corvair > 04/06/2006 12:49 > PM > > > Please respond to > pietenpol-list@ma > tronics.com > > > > Fellow Pieter's: > > I am interested to hear what carburetors are use on the corvair conversion. > It appears the NA-S3B Stromberg has been mention but having difficulties > finding a good one even on E-Bay. Are there other carbs being utilized more > often than others? Just looking for answers before I start my search.... > > Ken H. > Fargo, ND > > rates. > > > > > ________________________________ Message 5 _____________________________________ Time: 03:59:05 PM PST US From: Kip and Beth Gardner Subject: Re: Pietenpol-List: Carb issues for the corvair Ken, The Marvel MA3-SPA shows up periodically on eBay. After watching for about 3 months, I got one for around $100 (it's been a while, don't recall the exact price; William jokingly offered me $5 more than I paid for it sight unseen - I think he prefers it over the other models he recommends, with perhaps the exception of the Aero-carb, which he also holds in high regard ). It needs a rebuild, which will probably run around $350 if I buy the parts & get help from the guy in our EAA chapter that owns a machine shop. Kip Gardner At 10:49 AM -0700 4/6/06, Kenneth M. Heide wrote: >Fellow Pieter's: > >I am interested to hear what carburetors are use on the corvair >conversion. It appears the NA-S3B Stromberg has been mention but >having difficulties finding a good one even on E-Bay. Are there >other carbs being utilized more often than others? Just looking for >answers before I start my search.... > >Ken H. >Fargo, ND > > >PC-to-Phone >call rates. -- North Canton, OH